<?php

class StackTest extends PHPUnit_Framework_TestCase
{
public function testPushAndPop()
{
$stack = array();
$this->assertEquals(0, count($stack));
array_push($stack, 'foo');
$this->assertEquals('foo', $stack[count($stack)-1]);
$this->assertEquals(1, count($stack));
$this->assertEquals('foo', array_pop($stack));
$this->assertEquals(1, count($stack));
}
}
?>